SingleSexual & Hormonal

Oxytocin 10mg

Endogenous nonapeptide neurohormone studied for its impact on social cognition, pair bonding, anxiety pathways, and sexual function.

Mechanism

Selectively binds and activates the G-protein coupled oxytocin receptor (OXTR), stimulating downstream inositol triphosphate pathways to modulate cellular calcium and central neuroendocrine signalling.

Dosing

Standard experimental protocols begin with a conservative dose of 100 mcg administered once daily.

Reconstitution

Reconstituting a 10 mg vial with 3.0 mL of bacteriostatic water results in a final working concentration of approximately 3.33 mg/mL (3,333 mcg/mL).

Storage

Store the unmixed lyophilized powder frozen at -20 °C, and preserve the reconstituted liquid under refrigeration at 2–8 °C without freezing.

Mix & measure Oxytocin 10mg

Pre-filled with this protocol's recommended BAC water and documented starting dose — edit any field to run your own numbers.

Mix & measure Oxytocin 10mg

Vial strength → BAC water → target dose

Vial strength

BAC water

Target dose

Concentration3.33mg/mL

Draw volume0.030mL

On the syringe3.00units

Total doses in vial: 100.0

100u80u60u40u20u0

U-100 syringe: 100 units = 1 mL

Reconstitution math only — not dosing advice. U-100 syringe: 100 units = 1 mL. Advanced calculator →

Dosing Chart

Phase / Day(s)	Dose & Frequency	Volume (U-100 units / mL)
Weeks 1–2	100 mcg (1× daily)	3 units (0.03 mL)
Weeks 3–4	200 mcg (1× daily)	6 units (0.06 mL)
Weeks 5–6	300 mcg (1× daily)	9 units (0.09 mL)
Weeks 7–8	400 mcg (1× daily)	12 units (0.12 mL)
Weeks 9–12	500 mcg (1× daily)	15 units (0.15 mL)

Reconstitution Steps

1
Aspirate 3.0 mL of bacteriostatic water using a sterile syringe.
2
Introduce the diluent slowly against the inside glass wall of the vial to minimize agitation and foaming.
3
Gently swirl and rotate the vial until the lyophilized cake is fully dissolved, avoiding shaking.
4
Label the vial with the preparation date and maintain in refrigerated storage at 2–8 °C protected from light.

Supplies Needed

Peptide Vial

Oxytocin 10 mg lyophilized powder supply for research protocol duration

Insulin Syringes (U-100)

0.5 mL or 1.0 mL U-100 syringes for precise measurement of low microgram volumes

Bacteriostatic Water

Sterile diluent containing 0.9% benzyl alcohol used to reconstitute the peptide

Alcohol Swabs

70% isopropyl alcohol pads used for sanitizing vial septa and injection surfaces

Why researchers study it

Social bonding & trust

Anxiety & stress response

Libido & sexual function

Social cognition & autism

These describe what is being studied, not proven benefits, approved uses, or promised results.

Overview

Oxytocin is an endogenous cyclic nonapeptide produced within the paraventricular and supraoptic nuclei of the hypothalamus and stored in the posterior pituitary gland. Classically recognized for its role in mammalian obstetrics and lactation, oxytocin acts primarily through the oxytocin receptor (OXTR), a G-protein-coupled receptor broadly expressed across both peripheral tissues and specific neural circuits. In clinical medicine, regulated preparations are strictly approved for intravenous or intramuscular induction of labor and control of postpartum hemorrhage. In preclinical and experimental settings, investigational research has concentrated on oxytocin's influence as a central neuromodulator affecting complex behaviors. Investigators study its downstream interactions with mesolimbic dopamine networks, serotonin transmission, and the hypothalamic-pituitary-adrenal (HPA) axis, examining how receptor agonism modulates trust, anxiety modulation, and social recognition. While experimental models explore various delivery pathways, peripheral pharmacokinetics are characterized by rapid clearance and minimal permeability across the blood-brain barrier. Research protocols employing subcutaneous routes generally evaluate acute peripheral tolerability and systemic biological interactions. Because commercial research-grade oxytocin is intended strictly for in vitro and non-human laboratory experimentation, protocols utilize careful titration matrices to systematically monitor receptor activity while mitigating non-target smooth muscle stimulation.

References

1.StatPearls / NCBI Bookshelf, 2023 — Oxytocin nonapeptide physiology, OXTR signalling, and obstetric mechanics
2.Psychoneuroendocrinology, 2020 — Overview of oxytocin modulation of social behaviour and bonding
3.Clinical Pharmacokinetics, 2018 — Pharmacokinetic profile and short half-life parameters of exogenous oxytocin
4.Journal of Neuroendocrinology, 2019 — Bioavailability and dosing route comparisons in neuroendocrine models
5.Sikich et al., NEJM, 2021 — SOARS-B randomized trial evaluating intranasal oxytocin on social function in autism
6.Frontiers in Neuroscience, 2021 — Oxytocin interaction with HPA stress reactivity and reward pathways
7.Neuropsychopharmacology, 2020 — Investigation into blood-brain barrier penetration limitations of peripheral peptides